Can-lining machine.



C. H. WORKMAN.

CAN LINING MACHINE. APPLICATION FILED APR. 3. m5.

I, 2 SHETSSHEET 1.

Patented Nov. 16, 1915.

WITNESSES: Q'AOLAA QM M C H. WORKMAN.

CAN umwe MACHINE.

I APPLICATIGN FILED APR.3.1915. 1 169 965 Patented Nov. 16, 1915.

2 SHEETSSHEET 2.

IN VENTOR. fia/fi afif 5627671422,

A ORNE YS.

l l n COLUMBIA PLANCIGRAPH CO.,WASHINGTON, D. c

re 1? E CHARLES H. WORKMAN, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO WORKMAN PACKING 00., OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF CALIFORNIA.

CAN-LINING MACHINE.

Application filed April 3, 1915.

To all whom it may concern Be it known that 1, CHARLES H. WoRK-, MAN, a citizen of the United States, residing in the city and'county of San Francisco and State of California, have invented new and useful Improvements in Can-Lining Machines, of which the following is a specification.

This invention relates to a can lining machine.

In the manufacture of certain grades or varieties of canned tamales or other edibles, it is necessary to line the interior of the can with a douglrlike material. This has heretofore been accomplished by hand operation and is consequently more or less unsatisfactory as it is not only unsanitary but the lining thus formed generally varies in thickness which is also objectionable.

One of the objects of the present invention is to provide a simple, substantial, sanitary machine which is automatic in operation, through which the cans are fed and by which they are partly filled and lined; the lining thus produced being of uniform thickness and density.

Further objects will hereinafter appear.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which Figure 1 is a perspective view of the machine which is partly broken away to show the construction. Fig. 2 is a sectional view taken through the three cylinders comprising the filling and lining magazine, showing the plungers and auger in the upward or unoperated position. F igp3 is a view similar to Fig. 2, showing one plunger filling a can, another plunger entering a partially filled can and forcing the material against the sides of the can, and showing'the auger'entering and removing the surplus lining material from a can. Fig. 4: is asection taken on line 14, Fig. 3, showing the filling tube and plunger drawing a charge, by vacuum means, from the feed receptacle. Fig. 5 is an enlarged sectional view of a lined can after the operations of the machine have been completed thereon.

More particularly described, A indicates a suitably shaped platform or table upon which is mounted a standard 2. J ournaled Specification of Letters Patent.

Serial No. 19,019.

at one end of said table is a main drive shaft 3, to which power is transmitted through a pulley 4 from any suitable source not here shown. Mounted on one side of the standard 2 is a hopper 5. The dough with which the cans are lined is deposited in this hopper .and is delivered in measured quantities to each can successively by means hereinafter to be described.

The cans are conveyed through the machine by any suitable means, but preferably by a chain, such as indicated at 6, upon which is mounted a plurality of projecting lugs or arms 7 which are adapted to engage the cans and feed same through the machine. The chain is intermittently moved by a ratchet mechanism, generally indicated at 8, from a pivotally mounted rocker-arm 9, which in turn is operated by a link 10 con nected with a crank 11 secured upon a secondary drive shaft 12 which is driven by the main drive shaft through bevel-gears, indicated at 13, said shaft being suitably supported below the table at right angles to the drive shaft. The intermittent movement of the chain or can feeding device will cause the cans to be intermittently moved and a single can being'fed through the machine will be brought into register, first, with the cylinder 1d, second, with the cylinder 15, and, third, with the cylinder 16; the three cylinders 1d, 15 and 16 being the filling, forming and trimming cylinders respectively. The cylinder 1a is in this instance connected with the main dough receiving hopper by means of a horizontally disposed cylinder 17; this. cylinder having an opening in its upper side which registers with the interior of the hopper.

Mounted in the cylinder 17 is a piston or plunger 18 which is reciprocated at timed intervals by means of a pivotally mounted rocker-arm 19, one end of which is operated by a roller 19 which engages with an internal cam 20 formed in the wheel 21 which is secured upon and driven by the secondary drive shaft. The other end of the rockerarm is connected with the piston or plunger 18 by means of an offset link 22.

Mounted in cylinder 14 is a plunger 23. This is reciprocated at timed intervals by means of a pivotally mounted rocker-arm2 l which is operated by means of an arm 25, on the lower end of which is mounted a roller PatentedNov. 16, 1915- 26, said roller engaging with an internal cam 27 formed in the wheel 21 on the face opposite to cam 20. The lower end of the arm, below the roller, is preferably forkshaped, as indicated at 28, to straddle the shaft and also to guide the arm in its up and down movement. The opposite end of rocker-arm 24 is connected with the plunger 23 by means of a link 29. The position of cams 20 and 27 in wheel 21 is such that plunger 23 will be lifted by rocker-arm 24 when plunger 18 is being moved inwardly toward the cylinder 14 by means of the rocker-arm 19. When the reverse movement takes place plunger 23 will assume the position indicated in Fig. 4 and will in this manner close the opening between cylinders 17 and 14 or act as a valve so that as piston 18 moves outward a suliicient vacuum will be produced in the cvlinder to draw a quantity of dough from the hopper into the interior of cylinder 17, as indicated at 30.

The reverse movement of the two plungers willcause plunger 23 to clear the opening between cylinders 14 and 17 and will thus permit plunger 18 to force out the quantity of dough 30 previously delivered,

into cylinder 14. The reverse movement of the plungers again will cause the plunger 23 to force this quantity of doughinto the can and will at the same time act as a valve to close the communicating opening between the cylinders, permitting vacuum to be formed incylinder 17 and a new charge of dough to enter. The operation between the two cylinders 'is thus automatic and co6perative and a uniform quantity of dough will in this manner always be delivered to the can.

The downward movement of the plunger 23 takes place while a can is positioned directly under the lower discharge end of cylinder 14 or while the can is remaining sta trimming or finishing operation takes place and this is accomplished as follows: The can in this position will be supported upon a lifting platform 32 in the form of a plunger which is operated by means of a cam 33 engageable with a roller 34, mounted on the lower end of the plunger. This plunger raises the cam into the position indicated in Fig. 3 where the lower end of cylinder 16 enters the can; a shoulder '35, near the end of the cylinder, forming a stop and joint at this point to prevent any escape of the dough while the dough is being trimmed and shaped and while any superfluous amount of same is being removed.

Thetrimming, shaping and removing of the dough is accomplished by means of an auger 36 secured upon the end of a shaft 3"? journaled in an extension arm 2" formed on standard 2. This shaft is continuously revolved by means of shafts38 and 39 suit ably journaled on the standard and gears 40, 4land 42. The auger is also reciprocated, that is, it is raised and lowered, with relation tothe interior of the can, as indicated in Figs. 2 and 3, and this is accomplished as follows: Secured upon shaft 37 is a grooved collar 43. Engageable with said collar is a pair of pins or rollers 44 mounted intheiouter fork-shaped end 45 of a pivotally mounted rocker-arm 46. The other end of said arm is connected by a rod 47 with an internal cam 48. A collar 49 mounted near the lower end of therod and engageable'with cam 48 causes the rod to transmit reciprocal movement through the rocker arm 46 to shaft 37 consequently raising or lowering auger 36 with relation to the can face. The forming plunger 31, mounted in cylinder 15, is raised and lowered in unison with the auger by means of a link 50 secured atone end to the plunger and at its other-end to a pin 51 mounted on one side of fork 45. The lowering movement of the auger 36 transmitted through cam 48, rod

47 and rocker-arm 46, and the revolving movement transmitted to same through shafts 38 and 39, with connected gears, causes the auger to trim the lining material which has-already been partly formed by the plunger 31 and any superfluous material thus removed is elevated by the auger to the upper end of cylinder 16 where it is forced through an opening 52 into a tube 52 which connects with the hopper 5. fluous dough delivered to the can is thus automatically returned to the hopper where it is delivered to cans as they are successively fed through the machine.

Any super- The plungers 29 and 31, together with the auger 36, are all depressed in unison; this movement being controlled by the position of the respective connected operating cans. The position of cam 33, which operates the can lifting platform under cylinder 16, is

slotted and a pin 62 extends through the rod 61 and the slots in the plunger,said slots being suliiciently elongated to permit-the valve to open, as shown in Fig. 2. The' valve'is terial in the can the opening movement of.

the valve being limited, however, by the length of the slots through which pin 62 ex tends. can is thus relieved and the dough is prevented from being withdrawn with the plunger.

A, machine constructedas here shown is automatic in operation and needs very little attention, as the cans are fed therethrough by means of the chain feeding mechanism previously described. The machine is, furthermore, sanitary, as the hopper, together with the connected feeding, forming and trimming cylinders are so positioned that they may be readily cleaned from time to time; Only one attendant is necessary where a, machine of, this typeis used" and his only duty will be to see that thehopper is supplied from time to time with a suiiici'ent' quantity of dough; everythingelse being automatically attended to by the machine.

The materials and finish of the several parts of the machine are such as the experience and judgment of the manufacturer may dictate. I r p I wish it understood that various changes in form, proportions and minor details of construction may be resorted towithin the scope of the appended claims and that l do" not wish to jlimit myself to the specificdesign and construction here shown. Having thus described my invention, what I claim and desire to secure by Letters Patent 3 1. A can lining machine comprising, in combination, means for delivering a quantity of dough to a can, and means forspreading said dough evenly over the interior surface of the can andmeans for trimming the inner face of the lining.

2. A can lining machine comprising, in combination, means for delivering a quantity of'dough to a can, means for spreading the dough inside of the can to form a lining for the can, andmeans for trimming the inner face of the lining and removing any surplus dough from the can. i

3. In a can lining machine, in-combination, a hopper for'supplying dough to a can,

means for spreading the dough over terior surface-of the can to form aiming,

and means for reducing the thickness of the dough lining subsequent to the spreading op eration.

The vacuum in the inside of the p I plus dough from within the can.

i. In a can lining machine, in combination, a hopper for supplyingdough to a can,

means for spreading the dough over the interior surface of the can,and trimming means adapted for trimming the, interior surface of thelining. a 5. In: a can lining machine, means for supplying dough to a can, means for spreading can to a certain thickness, and means for tr mming the lining and reducing its thick i the dough over the interior surface of the r p ness.

6'; A" can lining machine comprising, i]

combination, a receiving hopper for dough,

said hopper having a discharge opening formed therein, a receiving cylinder connecte ed wlth said opening, a discharge cylinder 1 connected with the receiving cylinder, means for automatically'feeding a can toa point below the .discharge cylinder in register with same, means for conveying the dough from the receiving cylinder to the discharge cylindeiymeans for forcing the dough out ofthe discharge cylinder into the can, means i for spreadingthe dough inside of the can to form'a lining for the can, and means for trimming the dough and removing any sur- 7.111 a can lining machine, a hopper for supplying dough to a can, a formmg plunger, mechanism for forcing the plunger into the can to spread the dough over the interlor surface of the can for forming a lining,

and a trimmer insertible in the can for trimming the lining.

8; A can lining machine comprlsing, in

combination, a receiving hopper for dough,

cylinder into a can, means for spreading the y dough inside of the can to form a lining for the can, and'means for trimming andremoving any surplus dough from wlthin the can.

9. A canlining machine comprising, in

combination, a receiving hopper for dough,

means for discharging a measured quantity 3 of dough from the hopper into a: can, means for spreading the doughmside of the can to form a lining for the can, and means for reducing the lining thickness and removing "any surplus dough from the can.

10; A can lining machine comprising, in combination, a rece ving hopper for dough,

, means for discharging a measured quantity of dough from the hopper into a can, a cyl1n-' der, means for automatically feeding the can to a point in register with the mouth of said 7 cylinder, a forming plunger of smaller diameter thanthe interior of the can mounted in the cylinder, means for forcing the plunfie 7 gerinto the can to spread the dough eveiily over the-interior surface of the can to form a lining, and means for reducing the lining thickness and removing'any surplus dough [from the can subsequent to the spreading operation.

11; A can liningmachine comprising, in combination, a receiving'hopper for dough,

means. for discharging a measured quantity of dough from the hopper into a can, a cylinder, means for automatically feedingthe'can (to a point in register with the mouth of said cylinder, a formingrplungerrot-smaller diameter than the interior of the can mounted 'inthe cylinder, meansfor forcing the'plun ger into the can to spread the dough evenly over theinterior surface of the can, and

means for trimming and removing any surplus dough from the'can, said means comprising a second cylinder andan auger rota? tively and reciprocally mounted in sa d cyl inder, i c

12. A can combination, a receiving ho'pperfor'dough,

LZTSELld hopper having a discharge opening formed therein, a receiving cylindercon- 'nectedwith said opening, a discharge cylinder connected with the receiv-ing cylindei',

means for automatically feeding a can to-a' point below the discharge cylinder in-regis-y ter with same, means for conveying the dough from the receiving cylindergto the,

vcan support movable to carry the can there- Ion-toward the cylinder to receive latter, and a trimmer Within the cylinder and movable into the can.

14. A can lining machine comprisin in combination, a receiving hopperfor dough,

a cylinder mounted below said hopper hav i ,ing an opening formed therein communicat- Bil ing with the interior of the hopper", means for producing a sufficient degree of vacuum Within said .cylinderto draw a charge of dough from the'hopper into the cylinder, means fordischarging'the dough from the cylinder into a can, means for spreadingthe dough inside of the can to form a lining for the can, means for trimming and removing any surplus dough from Within thecan, and. means for returning-said surplus dough to the hopper. r

1 5,. A caniliningtmachine comprising, in combination, avreceiving hopper for dough,

ineans for discharging a measured quantity of dough from the hopperinto a can, means 7 for spreading the dough inside of the can'to lining machine comprising, in

form a; lining for-the canfine ans for trim-.

mingthe lining: surface 'and removing any i I surplus dough from the can and means fer,

returningsaidsurplus dough to the-hopper. 16; can lining machinecomprising, in

combination, a receiving hopper for dough,

means for discharging a measured quantity of dough from the hopper into a can, a cyl indeiypmeansfor automatically feeding the canto a point in registerwith the mouth of said cylinder, a iforming plunger of smaller diameter than the interior of the can mount ed in the cylinder, means for'forcing the plunger into the can to spread the dough evenly over the interior surface of the can,

1 a return conduit leading to the hopper, and unitary means for trimming any. surplus doughifrom the can and deliveringthe sure plus .to the return conduit.

17 can ;l1ning machine comprising, in combination, receiving hopper for dough,

.means ford'ischarging a measured quantity of dough-from the hopper into a can, a cyl inder, means for automatically feeding the I can to a point in register With-the D'lOlltlIOf said cylinder,- a forming plunger of smaller means for trimming and removing any sur plus dough from the can, said means com 'prising a second cylinder With Which the can is brought into register after 7 the,

forming plunger has been Withdrawn, an

- diameter than the interior of the can mount" 'ed in the cylinder, means for forcing. the plunger into the can to spread the dough evenly over the interior surface of the can,

auger mounted in said cylinder, means for rotating -said auger, and means for reciprocating the auger to permit it to be raised and lowered in the canto trim off any surplus dough a a V 18. A can lining machine comprising, in

combination, a receiving hopper for dough,

means for discharging a measured quantity of dough from the hopper into a can, a cylnder, means for automatically feeding the can to a point in register with the mouth of 7 said cylinder, aforming plunger of smaller diameter than the interior of the can mounted in the cylinder, means for forcing the plunger into the can to spread the dough evenly'over the interior surface of the can,

means for trimming and removing any surplus dough from the can, said means comprisinga second cylinder with which the can is brought into register after the forming plunger has been Withdrawn, an anger mounted in said cylinder, means for rotating said auger, means for reciprocating the auger to permit it to be raised andlowv ered in the can to trim ofi any surplus dough,

an extension on the end of; the second cylinder'fi'tting the interior of the can, a lifting,

platform bGlOW the cylinderupon Which the can rests When in register with the cylinder, 7 and means for raisingsaidiplatform to per mit the extension on the cylinderto enter the upper end of the can when the augeris lowered to trim the dough lining ofthe can.

19. A can lining machine comprising, in combination, a receiving hopper for dough, means for discharging a measured quantity of dough from the hopper into a can, a cylinder, means for automatically feeding the can to a point in register with the mouth of said cylinder, a forming plunger of smaller diameter than the interior of the can mounted in the cylinder, means for forcing the plunger into the can to spread the dough evenly over the interior surface of the can, means for trimming and removing any surplus dough from the can, said means comprising a second cylinder with which the can is brought into register after the forming plunger has been withdrawn, an anger mounted in said cylinder, means for rotating said auger, means for reciprocating the auger to permit it to be raised and lowered in the can to trim off any surplus dough, and means for returning said surplus dough to the hopper.

20. A can lining machine comprising, in combination, a receiving hopper for dough, means for discharging a measured quantity of dough from the hopper into a can, a cylinder, means for automatically feeding the can to a point in register with the mouth of said cylinder, a forming plunger of smaller diameter than the interior of the can mounted in the cylinder, means for forcing the plunger into the can to spread the dough evenly over the interior surface of the can, means for trimming and removing any surplus dough from the can, said means comprising a second cylinder with which the can is brought into register after the forming plunger has been withdrawn, an auger mounted in said cylinder, means for rotating said auger, means for reciprocating the auger to permit it to be raised and lowered in the can to trim off any surplus dough, an extension on the end of the second cylinder fitting the interior of the can, a lifting platform below the cylinder upon which the can rests when in register with the cylinder, means for raising said platform to permit the extension on the, cylinder to enter the upper end of the can when the anger is lowered to trim the dough lining of the can, and means for returning said surplus dough to the hopper.

21. A can lining machine comprising, in combination, a receiving hopper for dough, said hopper having a discharge opening formed therein, a receiving cylinder connected with said opening, a discharge cylinder connected with the receiving cylinder, means for automatically feeding a can to a point below the discharge cylinder in register with same, a plunger mounted in the receiving cylinder to draw the charge from the hopper into the cylinder and also to force the dough thus admitted into the discharge cylinder, a plunger in the discharge cylinder to force the dough into'the can, a second cylinder with which the can is brought into register after receiving the dough from the discharging cylinder, a forming plunger on said cylinder, means for forcing said plunger into the can to spread the dough interior of the can to form a lining for same, a third cylinder with which the can is brought into register after the forming plunger is withdrawn from the can, an auger in said cylinder, means for rotating said auger, and means for reciprocating the auger to permit it to be raised and lowered in the can to trim off any surplus dough.

22. A can lining machine comprising, in combination, a receiving hopper for dough, said hopper having a discharge opening formed therein, a receiving cylinder connected with said opening, a dischar e cylinder connected with the receiving cylinder, means for automatically feeding a can to a point below the discharge cylinder in register with same, a plunger mounted in the receiving cylinder to draw the charge from the hopper into the cylinder and also to force the dough thus admitted into the discharge cylinder, a plunger in the discharge cylinder to force the dough into the can, a second cylinder with which the can is brought into register after receiving the dough from the discharging cylinder, a forming plunger on said cylinder, means for forcing said plunger into the can to spread the dough interior of the can to form a lining for same, a third cylinder with which the can is brought into register after the forming plunger is withdrawn from the can, an anger in said cylinder, means for rotating said auger, means for reciprocating the auger to permit it to be raised and lowered in the can to trim off any surplus dough, an

extension on the end of the second cylinder fitting the interior of the can, a lifting plat form below the cylinder upon which the can rests when in register with the cylinder, and means for raising said platform to permit the extension on the cylinder to enter the upper end of the can when the auger is lowered to trim the dough lining of the can.

23. A can lining machine comprising, in

combination, a receiving hopper for dough, 3

chargecylinder, a plunger in the discharge cylinder to force the dough into the can,

a second cylinder with which the can is brought into register after receiving the" dough from the discharging cylinder, a forming plunger on said cylinder," means for forcing said plunger into the can to spread the dough interior of the can to form a lining for same, a third cylinder with which the can is brought into register after I the forming plunger is withdrawn from the can, an auger in said "cylinder, means for rotating said auger, means for reciprocating the auger to permit it to be raised and lowered in the can to trim off any surplus dough, and means for returning said surplus dough to the hopper.

discharge cylinder, a plunger in the discharge cylinder to force the dough into the can,a second cylinder with which the can is brought into register after receiving the dough from the discharging cylinder, a forming plunger on said cylinder, means for forcing said plunger into the can to spread the dough interior of the can to form a lining for same, a third cylinder with which the can is brought into register a a fter the forming plunger is withdrawn rom the can, an auger in said cylinder, means for rotating said auger, means for reciprocating the auger to permit it to be raised and lo-w ered in the can to trim off any surplus dough, an extension on the end of the second cylinder fitting the interior of the can, a lifting platform below the cylinder upon which the can rests when in register with the cylinder, means for raising said plat- CHARLES H. WVORKMAN.

Witnesses CHAs. P, HUNT, V CHAS; A. CA'vANAcH.

Copies of this patent may be obtained for five cents each, by'a'ddressingthe Commissionerof Patents,

Washington, D. G. 

